Radon Mitigation in Bismarck, ND

Radon Mitigation in Bismarck, North Dakota

Bismarck and Burleigh County sit in EPA Radon Zone 1. North Dakota ranks among the top radon states nationally, and Bismarck — the state capital — is no exception. Central North Dakota's geology and housing stock create significant radon risk that testing consistently confirms.

Why Bismarck Homes Test High

Central North Dakota sits atop the Williston Basin — a geological formation of oil, gas, and uranium-bearing shale. The Missouri River valley around Bismarck overlies permeable alluvial soils and weathered shale that allow radon gas to migrate toward building foundations with minimal resistance.

Bismarck's full-basement housing stock — standard across the Northern Plains for frost depth — and long cold winters from October through April concentrate indoor radon significantly.

What Radon Mitigation Costs in Bismarck

• Standard basement home: $800–$1,400
• Slab-on-grade: $850–$1,400
• High-level homes (20+ pCi/L): $1,200–$1,800

North Dakota's contractor base is smaller than in larger states. Schedule 2–3 weeks ahead, particularly in spring.

North Dakota Contractor Certification

Radon contractors must hold NRPP or NRSB certification. The North Dakota Department of Environmental Quality oversees the state radon program.

Finding a Certified Mitigator in Bismarck

Find a Certified Radon Mitigator in Bismarck →

Burleigh County has NRPP-certified contractors serving Bismarck and surrounding communities. Average mitigation costs run $900–$1,300.